Liferay provides required, basic CMS features. But Alfresco provides enhanced, sophisticated CMS features. If you need extended CMS support/features, you can still use Alfresco with Liferay combination. Result .... you get the best of both.
Open Source leads to Open Mind
Jonas X. Yuan
Joined: May 18, 2008
By the way, full integration of Liferay and Alfresco is here